# Algebra 1 : Functions and Lines

## Example Questions

### Example Question #1 : Midpoint Formula

Find the midpoint of the line segment with these endpoints:  and .

Explanation:

The midpoint formula is

.

Add the two  values together and divide the total by two to find the  value of the midpoint. Add the two  values together and divide the total by two to find the  value of the midpoint.

### Example Question #861 : Functions And Lines

What is the midpoint of the points  and ?

Explanation:

The midpoint between two points can be found by the equation . Substiuting in the equation becomes . If you simplfy it the the midpoint is .

### Example Question #4148 : Algebra 1

What would be the midpoint of a line with endpoints and ?

Explanation:

To find the midpoint, we just need to find the mean of the x-coordinates, and then the mean of the y-coordinates. To find the mean, add the two numbers together and then divide by 2.

Our x-coordinates are -3 and 15.

Their mean is

.

Our y-coordinates are 6 and 4.

Their mean is

.

This gives us a new coordinate pair of .

### Example Question #861 : Functions And Lines

The endpoints of a line segment are and . What is the midpoint?

Explanation:

In order to find the midpoint, we have to find the mean of the x-coordinates of the endpoints, and then find the mean of the y-coordinates of the endpoints. To find the mean, add the two numbers together then divide by 2.

The x-coordinates are 0 and -20.

Their mean is

.

The y-coordinates are 0 and 4.

Their mean is

.

This gives us a new x-, y-coordinate pair of .

### Example Question #862 : Functions And Lines

Find the midpoint of a line containing the points  and .

Explanation:

Use the midpoint formula:

Remember points are written in the following format:

Substitute.

Simplify.

Our midpoint is .

### Example Question #862 : Functions And Lines

What is the midpoint of the coordinates and ?

Explanation:

The questions is asking for the midpoint of a line between two coordinates.

The midpoint formula is

.

Now, fill in the variables to find

and

### Example Question #861 : Functions And Lines

Find the midpoint between the given points:

Explanation:

Using the midpoint formula:

Plugging in our points

we can find the midpoint.

### Example Question #41 : Midpoint Formula

Find the midpoint of the line segment that has endpoints at .

Explanation:

To find the midpoint of a line segment, take the average of the x-coordinates and the average of the y-coordinates.

### Example Question #42 : Midpoint Formula

Find the midpoint of the line segment that has endpoints at .

Explanation:

To find the midpoint of a line segment, take the average of the x-coordinates and the average of the y-coordinates.

### Example Question #862 : Functions And Lines

Find the midpoint of a line segment that has endpoints at  and .